Pinking machine



Dec. 11, 1934. w. T. MAXANT PINKING MACHINE Filed Aug. 17, 1953 2 Sheets-Sheet l Dec. 11, 1934. w. T. MAXANT PINKING MACHINE Fil ed Aug. 17, 19:53 2 SheetsSheet 2 ing seams of dressesfor for cutting fancy edges' Patented Dec. 11, 1934 UNITED srr 'r William T. Maxant, Ayer, Mass.

Application August 17,

9 Claims.

' My invention relates to an improvement in pinking machines.

Needless to say, a pinking-machine, broadly speaking, is old and well-known. It is for notchon oil-cloth, the ends of ladies gloves, and the like. 1

One of the principal objects of this invention is [to provide a machine which will lie approximately flat on a regular table. Another object is to provide a machine of this character which may be dropped into. the place in a sewing-machine stand occupied by the sewing-machine itself, thus requiring no extra stand or hole to accommodate my improved pinking-machine.

With these especial objects in view, my invention consists first in adjustable clamps underneath the machine, which make it possible for the machine to fit snugly into any standard sewing-machine cut-out.

It further consists in a machine, the body of which is designed in a single casting including the operating-plate, gear-box, fly-wheel guard, and in fact the entire mechanical fixtures, all on the same integral casting.

This invention includes cutter-guards to protect the fingers, and a stripper combined therewith to keep waste goods from winding around the cutter. 3

My invention further consists in an oil-reservoir on the anvil cradle tokeep thebearing Well lubricated.

Another feature is a flat spring underneath the spring which applies the required pressure against the cutter through the roller which c0- operates with the cutter, with means for'regulating that pressure. This feature is what makes it possible for the machine to be so thin, and which is really the secret why it can be dropped into a sewing-machine cut-out and not protrude deep into the hole. The pressure of this spring is capable of regulation from the surface of the plate.

In the accompanying drawings:

Figure 1 is a view in perspective;

Figure 2 is a longitudinal sectional View;

Figure 3 is a transverse section looking to the right in Figure 2;

Figure 4 is a transverse section through the operating plate, adjustable clamps, and a portion of the stand or table;

Figure 5 is a plan view;

Figure 6 is a view of a combined guard and stripper;

Figure 7 is a view of the flat spring;

1933, Serial No. 685,609

Figure 8 is a view in perspective of one of the adjustable clamps;

Figure 9 is a detail in section showing the oil reservoir on the anvil cradle.

The numeral 1 represents the operating-plate. This carries all the mechanism and is adapted to be dropped into the standard sewing-machine cut-out 2 in the top of the table or stand 3 of the sewing-machine as viewed in Figures 2, 3 and 4; and adjustable clamps 4 are adjusted and held in place against the sides of the cut-out 2 as shown in Figures 3 and 4 by means of the set-screws 5 in the slots 6.

In this way, the pinking-machine may be adjusted to any sewing-machine table or stand, regardless of the width of the opening or cutout 2 therein.

The operating-plate 1, gear-box 7, fly-wheel guard 8, and in fact the entire superstructure is preferably cast in a single integral piece, as illustrated.

Ashaft 9 is journaled in the sleeve 10 and is driven preferably by a chain of reduction-gears, say from sixteen to one, housed in the gear-box 7, the power being communicated through the fiy-wheel l1 housed in the fly-wheel-guard 8 through the belt 12 from the main drive of the sewing-machine (not shown). a,

The pinker 13 is secured on the shaft 9, and a roller 14 projecting up through an orifice 15 in the operating plate 1 cooperates with the pinker 13 to do the pinking. This roller 14 turns idly with the feeding of the material between it and the pinker. Y

The roller 14 is journaled on a pin 16 secured in the anvil cradle 17, as shown in Figure 3, and this anvil cradle is pivoted at one end by means of a pin 18 between a pair of depending lugs 19.

A central slot 20 is formed in the anvil cradle to receive the roller 14, and the pin 16 (on which the roller 14 turns) extends thereacross.

The fiat spring 21 (see Figures 2 and '7) extends between a pair of lugs 25 and is fulcrumed on the pin 26 with one end bearing upwardly beneath the free end of the anvil cradle and the other end resting in position to receive the lower end of the pressure screw 2'7 through the hole 28 provided in the flat spring therefor. This screw 27 turns in threads formed therefor in the operating plate and is located preferably at one end, close to the gear-blocks box '7 and fiy-wheel guard 8 where it is out of the way. By turning this screw to the right, pressure is exerted upwardly on the free end of the anvil cradle and in this way the position of the roller 14 is ad- 55 justed beneath the pinker and given the required pressure to insure the proper cutting of the material.

Oil-reservoirs 30 are formed in the anvil cradle on each side of the central slot or opening 20, and some sort of wicking or other fibrous material 31 is preferably placed in these reservoirs to conserve the outward flow of the lubricant. In this way, it is seldom necessary to oil the roller.

Holes 32 are formed in the plate immediately above each of these oil wells.

The usual oil-holes 33 are made in the sleeve 10 to lubricate the shaft 9.

A combined cutting guard and stripper is shown in perspective in Figure 6, and as applied in Figures 1, 2, 3 and 5. This is preferably made of wire and fashioned into the general shape illustrated and has several functions, one of which is to form a guard 34 around the pinker to pro *tect'the operators fingers, and to provide a stripper 35 to keep the waste goods from winding around the pinker or cutter 13, a feature never before used on a pinking-machine.

The shank 36 is passed through a post 37 formed on the side of the sleeve 10 where it is held in proper position by a set-screw 38.

A leading characteristic of this machine is its flatness, besides the fact that the superstructure or that portion above the operating plate 1 not projecting very high above the plate, the

- sub-structure is not as thick as the top 3 of the table or stand of the sewing-machine as shown in Figs. 2, 3 and 4, and this is mainly accomplished by the use of the stiff plate spring 21 which affords the required adjustment and pre sure for the roller 14, which adjustment is all made through the screw 2'7 from the upper surface of the operating plate.

By the use of the adjustable clamps 4, the pinking-machine may be held in the center in the ordinary opening 2 in the table of any standard sewing-machine by simply removing the sewing-machine mechanism and dropping my improved machine in its place and adjusting the clamps 4.

The power is taken from the sewing-machine belt 12 over the fly-wheel 11, thus making it possible to adapt my improvement to any standard sewing-machine power table using the same table transmitter and treadle which runs the sewing-machine. This is probably one of the most advantageous features of this invention, as the pinker can be used without extra table or extra power equipment, since all one has to do is to take the sewing-machine out of its stand and drop the pinker in its place. In most cases, by just shortening the belt the machine is ready for use. It will be readily understood that this is a most valuable feature in factories where there are rows upon rows of sewing-machines, any and all of which can be utilized for this improved p'inker without making any extra hole or stand necessary.

I claim:

1. The combination of an operating plate, a driven-shaft carrying a pinker, a roller coopcrating with the pinker, a stiif plate-spring for applying and regulating the pressure upon against the roller.

the roller, and a set-screw adapted to turn in a threaded hole in the operating plate and exert pressure on the flat spring to regulate the pressure on the roller. I

2. The combination with an operating plate, an anvil cradle pivotally connected therewith, a roller rotatably supported by the anvil cradle, a spring-plate having a fulcrum on the operaing-plate, and having one end bearing against the anvil cradle, and adjustable means connected with the operating plate for regulating the tension upon the plate spring and against the anvil cradle.

3. The combination with an operating plate having an oil hole therein, of an anvil cradle carrying a roller and pivoted to the plate, said anvil cradle having an oil-well leading to the bearings of the roller and located beneath the holes in the operating plate.

4. The combination with a pinker, of a guard and stripper made in one integral piece, the guard extending around the upper portion of the pinker to protect the operator and the stripper along side the lower edge and operating portion of the pinker.

5.'The combination with an operating plate having an oil. duct therein, of means at a point below the oil duct providedwith an oil well, and a device movably supported by said means,

said movably supported device having journals to which the oil from the oil-well is conveyed.

6. In an attachment for sewing-machines, the combination with a table having a cut-out therein to receive a portion, at least, of the sewing-machine works, of an operating plate and clamps connected therewith and constructed to be adjusted and adapted to be snugly secured against the oppositeedges of the cut-out of the machine table.

7. A pinking machine including an operating plate, a gear-box, fly-wheel guard and sleeve, all cast in one integral piece. in combination with a shaft journaled in the sleeve, a flywheel housed within the fly-wheel guard forv transmitting rotary motion to the shaft, a pink-- er secured to the shaft, a roller co-operating therewith, and a device for exerting pressure 8. The combination with a tabletop having anopening or cut-out portion, of a pinker'ineluding an operating-plate adapted to fit. approximately flush with the upper surface of the table, and clamps adjustably connected with the lower surface of the plate and adapted to be secured against the opposite edges of the cut-out or opening, said clamps located wholly beneath the operating-plate.v

9. The combination of an operating plate, a

pinker rotatably supported thereon, an anvil cradle pivotally connected with the operating plate, a roller rotatably supported by the anvil cradle and co-operating with the pinker, a

DISCLAIMER 1,984,224.William T. Mamnt, Ayer, Mass. PINKING MACHINE. Patent dated December 11, 1934. Disclaimer filed February 13, 1940, by the patentee. f u Hereby enters this disclaimer to that part of the claims in said specification, as

0 ows: 7 By disclaiming from claim 1, any combination in a pinking machine that does not include a housing on the operating plate enclosing the pinker shaft and the gearing therefor and extending continuously from a point adjacent the pinker to a point beyond the opposite end of said shaft and the driving gearing thereof;

and driving Wheel thereof; By disclaiming Ffrom claim 3-, any combination thereof except where the oil wells 1n the anvil cradle form reservoirs beside the bearings of the roller shaft in the anvil adjacent the pinker to a point beyond the opposite end of the shaft, enclosing therein also the gearing and driving wheel for said shaft. [Ofiicial Gazette March 5, 1940.]

DISCLAIMER 1,984,224.William T. M awant, Ayer, Mass. PINKING MACHINE. Patent dated December 11, 1934. Disclaimer filed August 21, 1941, by the patentee. Hereby enters this disclaimer to claims 1, 2, 6, 7, 8, and 9 in said specification.

[Oyficz'al Gazette September 16, 1.941.] 

